The Messenger of Allah ﷺ performed ablution in her presence. He wiped the whole of his head from its upper to the lower part moving every side. He did not move the hair from their original position. (Using translation from Abū Dāʾūd 128)
أَنَّ رَسُولَ اللهِ ﷺ تَوَضَّأَ عِنْدَهَا فَمَسَحَ بِرَأْسِهِ فَمَسَحَ الرَّأْسَ كُلَّهُ مِنْ فَوْقِ الشَّعْرِ كُلَّ نَاحِيَةٍ لِمُنْصَبِّ الشَّعْرِ لَا يُحَرِّكُ الشَّعْرَ عَنْ هَيْئَتِهِ وَفِي رِوَايَةٍ غَيْرِهَا مِنْ قَرْنِ الشَّعْرِ